Summary
Addition of concanavalin A to a suspension ofAmoeba proteus brings about cellular agglutination and the formation of what appear to be pinocytotic channels in cell surface projections. Although concanavalin A apparently brings about pinocytotic channel formation, it does not elicit bulk medium uptake or surface membrane turnover. Cytochalasin B brings about an initial cessation of locomotion and the development of a number of randomly distributed pseudopods. After a 30 to 45 minute exposure to cytochalasin B, the cells resume their normal appearance and pattern of locomotion. Cytochalasin B itself has no influence on inducing pinocytotic channel formation or membrane turnover, but when pinocytosis is induced with 0.01% alcian blue, pinocytotic activity is greatly intensified by the presence of cytochalasin B.
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Prusch, R.D. The influence of concanavalin A and cytochalasin B on pinocytotic activity inAmoeba proteus . Protoplasma 106, 223–230 (1981). https://doi.org/10.1007/BF01275554
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DOI: https://doi.org/10.1007/BF01275554